Web如何给画布元素添加一个简单的onClick事件处理程序?[英] How do I add a simple onClick event handler to a canvas element? WebJul 20, 2024 · Evidently offsetTop and offsetLeft are read-only property. scrollTop is the vertical scroll distance inside that element, scrollLeft is the same for horizontal scroll. …
HTMLElement: offsetTop property - Web APIs MDN
WebMay 2, 2024 · Retrieves the distance between the IHTMLElement::offsetTop property and the true top of the client area. Syntax HRESULT value = object.get_clientTop(* p); Property values. Type: long. the described distance, in pixels. Remarks. The difference between the IHTMLElement::offsetTop and the IHTMLElement2::clientTop properties is the border … WebAug 10, 2016 · 2.offsetTop 与 style.top 的差别 我们知道 offsetTop 可以获得 HTML 元素间隔上方或外层元素的地位,style.top 也是可以的,二者的差别是: offsetTop 返回的是数字,而 style.top 返回的是字符串,除了数字外还带有单位:px。 offsetTop 只读,而 style.top … schecter guitars solo 2
Element.clientTop - Web APIs MDN
WebThey differ slightly but that can be due to the time at which each is called in the browser being slightly different (one is essentially called after the other..just at a very tiny difference in time). The scrollTop and getBoundingClientRect () are sign inverses of eachother in this case. Nice work. WebNow you can use the following javascript to get the correct position: var popup = document.querySelector ('.popup'); var rect = popup.getBoundingClientRect (); console.log ("popup.getBoundingClientRect (): \n" + "x: " + rect.left + "\ny: " + rect.top); You can check the result in the jsfiddle: I tested on FF, IE and chrome, and it worked on all ... WebFeb 22, 2024 · 背景. offsetTopとclientTopの使い分けについてです。 両者の違いはoffsetTopがoffsetParentからの相対値で、clientTopはブラウザの左上からの相対位置です。. offsetParentと言われても意味不明ですが、ここではposition: absoluteなHTML要素の一番近い先祖のposition: relativeな要素です。。次のようなイメージで schecter guitars used